Portable stove



FIG. 1 is a perspective view of a portable stove, showing my new design;

FIG. 2 is another perspective view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top plan view thereof;

FIG. 8 is a bottom plan view thereof; and,

FIG. 9 is an operational perspective view of the portable stove showing that a support of the portable stove is folded.

The broken lines shown in the drawings depict portions of the article that form no part of the claimed design. 

CLAIM The ornamental design for a portable stove, as shown and described. 